+ void set_default_audio_language(dcp::LanguageTag tag) {
+ maybe_set(_default_audio_language, tag);
+ }
+
+ void unset_default_audio_language() {
+ maybe_set(_default_audio_language, boost::optional<dcp::LanguageTag>());
+ }
+
+ void set_default_territory(dcp::LanguageTag::RegionSubtag tag) {
+ maybe_set(_default_territory, tag);
+ }
+
+ void unset_default_territory() {
+ maybe_set(_default_territory, boost::optional<dcp::LanguageTag::RegionSubtag>());
+ }
+